Examination of the preliminary gravity dressing influence on the Shalkiya deposit complex ore

IF 1.5 Q3 Materials Science

Nonferrous Metals Pub Date : 2019-12-25 DOI:10.17580/nfm.2019.02.01

I. Motovilov, Sh. A. Telkov, M. Barmenshinova, A. Nurmanova

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引用次数: 6

Abstract

Grinding of mineral raw materials of different composition in drum mills with rolling steel tumbling medium is one of the main processes for liberation of mineral complexes and preparation of raw materials for beneficiation. It is known that grinding is one of the most expensive and energy-intensive operations at the ore-preparation process stage. Capital and operational outlays at this stage may reach up to 70% of the factory-wide indicators. In this connection, the reduction of power consumption for the mineral ore-preparation, and especially for grinding, is the topical problem in the mineral dressing technology [1–2]. On a global scale, the Bond work index procedure is most often used to determine the ore grinding power consumption [3]. The scientific literature describes many ways to reduce the ore grinding costs [4–10]. Thus, in [4] the currently central line of solving the problem of improving the efficiency of crushing and grinding processes through the use of modern grinding and classification model-oriented adaptive control system is illustrated by the example of copper-molybdenum ores. The ore grade of quality on-line rating algorithm application for managing the processes is the main approach in this direction. The stability of regulation and quality of grinding of copper-molybdenum ores increases by 5–7% owing to application of such an approach to the industrial process. The principle of crushing in high-pressure rolls (HPR), which allows one to obtain a fine feed for mills, is of practical interest. The emergence of HRP has allowed modifying a multi-stage crushing scheme. The HRP crushing products are characterized not only by a diminished size, but also by a high content of small size grades and increased fissuring, which makes it possible to lessen the volume of mills during subsequent grinding by 30...50% [5]. The authors of [6] present the laboratory studies on the grinding efficiency depending on the grinding bodies used (balls or rods) for various parameters such as granulometric composition, lithological type of copper ore. Examination of the preliminary gravity dressing influence on the Shalkiya deposit complex ore

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沙尔基雅矿床杂岩重选影响初探

用轧钢翻滚介质在滚筒磨机中研磨不同成分的矿物原料是释放矿物复合体和制备选矿原料的主要工艺之一。众所周知，在矿石制备工艺阶段，研磨是最昂贵和最耗能的操作之一。现阶段的资本和运营支出可能达到工厂指标的70%。在这方面，降低矿石制备的功耗，尤其是研磨的功耗，是选矿技术中的热门问题[1-2]。在全球范围内，Bond功指数程序最常用于确定磨矿功耗[3]。科学文献描述了许多降低矿石研磨成本的方法[4-10]。因此，在[4]中，以铜钼矿为例说明了目前通过使用现代研磨和分类模型导向的自适应控制系统来解决提高破碎和研磨过程效率问题的中心线。矿石品位在线评定算法应用于选矿过程管理是该方向的主要途径。由于这种方法在工业过程中的应用，铜钼矿的研磨调节稳定性和质量提高了5–7%。在高压辊（HPR）中破碎的原理使人们能够获得磨机的精细进料，这具有实际意义。HRP的出现允许修改多级破碎方案。HRP破碎产品的特点不仅是尺寸减小，而且具有高含量的小尺寸等级和增加的裂纹，这使得在随后的研磨过程中可以将磨机的体积减少30…50%[5]。[6]的作者对研磨效率进行了实验室研究，研磨效率取决于用于各种参数的研磨体（球或棒），如粒度组成、铜矿的岩性类型。对Shalkiya矿床复杂矿石的初步重力选矿影响的检查

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来源期刊

Nonferrous Metals METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Its thematic plan covers all directions of scientific and technical development in non-ferrous metallurgy. The main journal sections include scientific-technical papers on heavy and light non-ferrous metals, noble metals and alloys, rare and rare earth metals, carbon materials, composites and multi-functional coatings, radioactive elements, nanostructured metals and materials, metal forming, automation etc. Theoretical and practical problems of ore mining and mineral processing, production and processing of non-ferrous metals, complex usage of ores, economics and production management, automation of metallurgical processes are widely observed in this journal. "Non-ferrous Metals" journal publishes the papers of well-known scientists and leading metallurgists, elucidates important scientific-technical problems of development of concentrating and metallurgical enterprises, scientific-research institutes and universities in the field of non-ferrous metallurgy, presents new scientific directions and technical innovations in this area. The readers can find in this journal both the articles with applied investigations and with results of fundamental researches that make the base for new technical developments. Publishing according to the approach APC (Article processing charge).